Temperature controlled electrically heated washing machine



Dec. 5 1950 J. E. LANDFRIED TEMPERATURE CONTROLLED ELECTRICALLY HEATED WASHING MACHINE 5 Sheets-Sheet 1 Filed May 10, 1945 INVENTOR.

ATTORNEYS Dec. 5 1950 J E. LANDFRIED 2,533,122

TEMPERATURE CONTROLLED ELECTRICALLY HEATED WASHING MACHINE Filed May 10, 1945 5 Sheets-Sheet 2 IN VEN TOR.

ATTEI R N EYS Dec. 5 1950 J. E. LANDFRIED 2533122 TEMPERATURE CONTROLLED ELECTRICALLY HEATED WASHING MACHINE Filed May 10', 1945 3 Sheets-Sheet 3 h H INVENTOR. JOHN [Mam/0 5 W JMAE.

ATTU RN EYE Patented Dec. 5, 195i) TEMPERATURE CQNTROLLED ELECTRI- CALLY HEATED WASHING MACHINE John E. Landfried, East Palestine, Ohio; Elsie E. Landfried administratrix of said John E.

Landfried, deceased Application May 10, 1945, Serial No. 593,031

2 Claims.

My present invention, in its broad aspect, has reference to improvements in combined washing machines and wringers wherein a thermostatic controlled heating element is incorporated in the machine, and simple, sturdy and efficient regulatable drive elements are employed from a power unit so that not only the temperature of the washing fluid is controlled, but also the operation of the washing machine and Wringer. Another object of my invention is to provide a stainless steel, corrugated container in which an aluminum agitator is oscillatably mounted and which has provided beneath the bottom thereof with a heat insulating apron in which is contained a regulatable heating coil or resistance unit, and through which apron i arranged the dirty water outlet. Below the apron is mounted the motor and drive gearing to the agitator and wringer, and the wringer is reversible. Suitable switches for the washer and wringer, and a thermostat control for the heater are provided in readily accessible positions on the outside of the device.

Other and equally important objects and advantages of my invention will be apparent from the following description and drawings, but it is to be understood that changes in form, size, shape, construction and arrangement of parts is permissible and within the broad purview of my inventive concept and the scope of th appended claims,

In the drawings wherein I have illustrated a preferred form of my invention:

Figure 1 is a top plan view showing the washer and wringer.

Figure 2 is a transverse section on the line 2-2 of Figure 1.

Figur 3 is a side elevation partly broken away.

Figure 4- is a section on line 6-4 of Figure 2.

Figure 5 is a section on line 55 of Figure 2.

Figure 6 is a detail of the wringer reversing gear, and

Figure 7 is a detail of the drive elements.

In the drawings wherein like characters of reference are used to designate like or similar parts:

The numeral I designates a cylindrical stainless steel casing, which is corrugated at 2 and provided with a removable cover 3. The casing has a bottom through which is mounted a tubular column 5 forming a bearing for the agitator drive shaft 6. mounted a four bladed bell-shaped aluminum agitator l, the blades 8 of which are radially opposed and have wide bases 9, an upwardly and inwardly curved outside edge H3, and a roundedolf top edge ll.

On the drive shaft 6 is Mounted beneath the bottom l is an apron l2 having a flanged tray part !3 to which is connected as at I311 the insulating member Hi; the outlet pipe l5 extends through the tray to a spigot I5a outside the casing. The tray is carried by a cylindrical base It on which the casing l is mounted. The insulating member M of the tray is formed with a central circular depression l1 and a U-shaped guard rim it. An electrical resistance or heating coil Iii-see Figure 4--is supported on bracket 29 in the depression l! to heat washing fluid in the casing or washing receptacle I,

The shaft 6 extends through the apron and has a relatively long crank 2! to which is pivotally connected by a pin 22 adjacent its periphery, a shorter crank 25, the free end of which is pivoted on a pin 24 on the rotating arm 25 on the upper end of power shaft 25. The power shaft 26 is supported in roller bearings in a cross-piece 21 which is connected between supports 21a and a V-pulley 28 and belt 29 are connected with the shaft 25 with a similar drive pulley 30 on the shaft 3! of an electric motor 32 mounted on a plate 33 on the bottom 34 of the base IS. The bottom 34 and cross-piece 2i and supports 21a are carried on legs 35. The bottom end of the shaft 25 is mounted in roller bearings 36 in the bottom. By these means, rotation of the shaft 26 by the motor 32 rotates arm 25 which oscillates the long crank 2! through rotation of the short crank 23 to oscillate the agitator l.

The shaft 26 carries another V-pulley 3? and belt 38 which is trained over a similar pulley 39 on the vertical wringer drive shaft so which is anti-frictionally journalled in bearings it on the outside of the casing and base and has a curved guard and enclosure 32. The upper end of the shaft carries a beveled gear 43 meshing with reversing gears 44 on the wringer drive shaft which carries the gear shift elements 46, and is mounted in the housing 4?. The element 4% is connected with a reversing handle 48 which has a pin catch The wringer is clamped to the casing as at 5B and has a frame 5| and opposed rollers 52.

The electric circuit 53 includes a junction box 53a, and a. connection 54 to the motor 32. A switch 55 in the circuit 53 is of the double variety to control the motor and also control the heating element through the connection 55 in which circuit the thermostat 5'! is interpolated. The thermostat has a housing which may have communication through openings with the water in the casing. A lead-in cable 58 is con- 3 nected with the switch. A clutch 59 including clutch elements 59a and 5% is mounted on shaft 2E-see Figure 'Z-and is operated through lever Bil pivoted to the member 21 as at 6!.

From the foregoing, it is believed that the operation and advantages of my invention will be apparentj but it is a'gTa-in' emphasized t-hat' inter pretationof its scope should only be conclusive when made in the light of the subjoined claims.

I claim:

1. In a washing machine comprising, a cylindrical container mounted on a substantially vertical axis and having an internal wall axially corrugated and a bottom, athermostatic d'e vice externally attached to the outside; surface of the external wall in heat-receiving relationship with the same and operative in response to a predetermined temperature change within said container, a bearing sleeve extending-11 pwardly from said bottom parallel with the lon- H gitudin'alaxisof said container, an agitator in: said container and rotatably mounted on said bearing sleeve for agitating contents of: con tain'er, a" cylindrical baseinounted on'= a suhstantially'verticalaxis and supportingr said cylindri cal container, a: flanged cylindrical member on said base adjacent the" bottom or said: container, 2/ thermal insulating-1 member supported by saidfiangect cylindrical: member against said con tainer bottom, a? driven shaft: attached to said: agitator for driving the same, shaft extend ing through said flanged cylindrical member and said container bottom and rotatably mountech in said: bearing sleeve, saidinsulating member hav inga circular depression: about said driven shaft, an electrical heating element insaid circulan de pressionand positioned about said driven shaft for" heating; contents of said container, an elec'-- trical circuit connecting, saidheating element to a source: o1= energy through said: thermostatic? device'- wherebythe latter can control theheatingefiector: said heatingelement in response to said predetermined temperature change withinthe container, a crank secured to said' driven shaft,-= a driving. shaft, means mounting parallel to the s'arnabut ofiset from said drivenshafni a crank 011 said: driving shaft;v a link, means pivotally connecting the endsof said link to said driven= shaft and driving shaftcranks; respec t-ively a source of power, and=manually=operated clutch: means connecting said driving shaft: tosaid source of power.

2. In a washing machine comprising a cylindrical container mounted on a substantially vertical axis and having an internal wall axially corrugated and a bottom, a thermostatic device attached to the outside surface of the external wall in heat-receiving relationship with the same and operative response to a predetermined temperature change Within the said container, a bearing sleeve extending upwardly from said bottom, an agitator in said container and rotatablymounted on said bearing sleeve for agitating contents of said container, a base mounted on a substantially vertical aXis and supporting said cylindrical container, means thermallyinsulating the bottom of said container, a driven shaft attached to said agitator for driving the same-,-said shaft extending through said sleeve, bottom and insulating means, said insulating means having a circular depression about said driven shaft, an electrical heating element in said circular depression andpositioned about said driven shaft for heating: content of said" container, an electrical circuit connecting? said heating" element to a source of energy; through said thermostatic device whereby the latter can control the" heating effect of said heating ele ment'" in response" to said predetermined temper-" ature" change within the container, a crank se'--' cured-to said driven shaft,.a' driving shaft, me'an's mounting the same parallel to but oifset from said driien shaft; a crank on' said driving: shaft,- a link, means pivotall y' connecting the ends of said? link to" said drivenshaft anddriving shaft cranks, respectively; a source" of power, and manually operated clutch means connecting-saidzdr i-vi'rig shaft to said sourceof power.

JGHN E. LANDFRIED;

REFERENCES CITED The following references are of record in" the file of this patent":

UNITED STATES PATENT 

